<script setup>
import { User, Lock } from "@element-plus/icons-vue";
import { ref } from "vue";
import { ElMessage } from "element-plus";
//控制注册与登录表单的显示， 默认显示注册
const isRegister = ref(false);
//定义数据模型
const registerData = ref({
  username: "",
  password: "",
});

//定义表单校验规则
const rules = {
  username: [
    { required: true, message: "请输入用户名", trigger: "blur" },
    { min: 3, max: 16, message: "长度为3~16位非空字符", trigger: "blur" },
  ],
  password: [
    { required: true, message: "请输入密码", trigger: "blur" },
    { min: 3, max: 16, message: "长度为3~16位非空字符", trigger: "blur" },
  ],
  //   rePassword: [{ validator: checkRePassword, trigger: "blur" }],
};

//调用后台接口,完成注册
import { userRegisterService, userLoginService } from "@/api/user.js";
const register = async () => {
  //registerData是一个响应式对象,如果要获取值,需要.value
  let result = await userRegisterService(registerData.value);

  ElMessage.success(result.message ? result.message : "注册成功");
};

//绑定数据,复用注册表单的数据模型
//表单数据校验
//登录函数

import { useRouter } from "vue-router";
const router = useRouter();
//
const login = async () => {
  //调用接口,完成登录
  let result = await userLoginService(registerData.value);

  ElMessage.success(result.message ? result.message : "登录成功");

  //跳转到首页 路由完成跳转
  router.push("/layout");
};

//定义函数,清空数据模型的数据
const clearRegisterData = () => {
  registerData.value = {
    username: "",
    password: "",
  };
};
</script>

<template>
  <el-row class="login-page">
    <el-col :span="12" class="bg"></el-col>
    <el-col :span="6" :offset="3" class="form">
      <!-- 注册表单 -->
      <el-form
          ref="form"
          size="large"
          autocomplete="off"
          v-if="isRegister"
          :model="registerData"
          :rules="rules"
      >
        <el-form-item>
          <h1>注册</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input
              :prefix-icon="User"
              placeholder="请输入用户名"
              v-model="registerData.username"
          ></el-input>
        </el-form-item>

        <el-form-item prop="password">
          <el-input
              :prefix-icon="password"
              placeholder="请输入密码"
              v-model="registerData.password"
          ></el-input>
        </el-form-item>

        <!-- 注册按钮 -->
        <el-form-item>
          <el-button class="button" type="primary" auto-insert-space @click="register">
            注册
          </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link
              type="info"
              :underline="false"
              @click="
              isRegister = false;
              clearRegisterData();
            "
          >
            ← 返回
          </el-link>
        </el-form-item>
      </el-form>
      <!-- 登录表单 -->
      <el-form
          ref="form"
          size="large"
          autocomplete="off"
          v-else
          :model="registerData"
          :rules="rules"
      >
        <el-form-item>
          <h1>登录</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input
              :prefix-icon="User"
              placeholder="请输入用户名"
              v-model="registerData.username"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
              name="password"
              :prefix-icon="Lock"
              type="password"
              placeholder="请输入密码"
              v-model="registerData.password"
          ></el-input>
        </el-form-item>
        <!-- 登录按钮 -->
        <el-form-item>
          <el-button class="button" type="primary" auto-insert-space @click="login"
          >登录</el-button
          >
        </el-form-item>
        <el-form-item class="flex">
          <el-link
              type="info"
              :underline="false"
              @click="
              isRegister = true;
              clearRegisterData();
            "
          >
            注册 →
          </el-link>
        </el-form-item>
      </el-form>
    </el-col>
  </el-row>
</template>

<style lang="scss" scoped>
/* 样式 */
.login-page {
  height: 100vh;
  background-color: #fff;

  .bg {
    background: url("@/assets/logo.jpg") no-repeat 50% center / 500px auto,
    url("@/assets/login_bg.jpg") no-repeat center / cover;
    border-radius: 0 20px 20px 0;
  }

  .form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    user-select: none;

    .title {
      margin: 0 auto;
    }

    .button {
      width: 100%;
    }

    .flex {
      width: 100%;
      display: flex;
      justify-content: space-between;
    }
  }
}
</style>
